Professor Slaughter (Hargood Wickham, Marvel)
Professor Slaughter (Hargood Wickham, Marvel) appears in 5 issues in grailworth's catalog, and was first published in 1974. First appearance: Man-Thing #2 (1974), cover dated 1974.
First appearance
Every appearance we value
Man-Thing (1974) 3 issues
The Savage She-Hulk (1980) 2 issues
Character appearances from the Grand Comics Database, CC BY-SA 4.0.